// MIT License
// 
// Copyright (c) 2018 Cong Feng.
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

#ifndef SIMPLECC_CODEGEN_BYTECODEVISITOR_H
#define SIMPLECC_CODEGEN_BYTECODEVISITOR_H
#include "simplecc/CodeGen/ByteCode.h"

namespace simplecc {
/// ByteCodeVisitor is a CRTP mixin that provides a visit() method
/// to dispatch handling of each opcode to subclass.
/// Note: subclass must implement a corresponding visit method for **every**
/// opcode.
template <class Derived> class ByteCodeVisitor {
public:
  void visit(const ByteCode &C) {
    switch (C.getOpcode()) {
    default:assert(false && "Invalid Opcode");
#define HANDLE_OPCODE(opcode, camelName)                                       \
  case ByteCode::opcode:                                                       \
    return static_cast<Derived *>(this)->visit##camelName(C);
#include "simplecc/CodeGen/Opcode.def"
    }
  }
};

} // namespace simplecc
#endif // SIMPLECC_CODEGEN_BYTECODEVISITOR_H